In theory if other Pokemon types besides water (mostly Fire and Psychic) had Mega Launcher what moves would be boosted by the ability?
just these moves:
same moves different page:
so just use serebii's moveset calculator to see who might benefit
Just water pulse, dragon pulse, origin pulse, dark pulse, heal pulse and aura sphere are boosted by Mega Launcher.
Their power increases by 50% or heal 50% more.